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TAS5086

更新时间： 2024-09-12 21:55:07
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德州仪器 - TI /
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33页 457K
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PurePath Digital AUDIO SIX-CHANNEL PWM PROCESSOR

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TAS5086 数据手册

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TAS5086  
www.ti.com  
SLES131–FEBRUARY 2005  
PurePath Digital™ AUDIO SIX-CHANNEL PWM PROCESSOR  
FEATURES  
– 20 – 20 kHz Flat Noise Floor for 44.1, 48,  
88.2, 96, 176.4 and 192 kHz Data Rates  
•
Audio Input/Output  
– Digital De-emphasis for 32 kHz, 44.1 kHz  
and 48 kHz Data Rates  
– Automatic Master Clock Rate and Data  
Sample Rate Detection  
– Intelligent AM Interference Avoidance  
System Provides Clear AM Reception  
– Four Serial Audio Inputs (Eight Channels)  
– Support for 32, 44.1, 48, 88.2, 96, 176.4, and  
192-kHz Sampling Rates  
– Adjustable Modulation Limit From 93.8% to  
99.2%  
– Data Formats: 16-, 20-, or 24-Bit Input Data  
Left, Right, and I2S,  
•
General Features  
– Automated Operation With Easy to Use  
Control Interface  
– I2C Serial Control Slave Interface  
– Control Interface Operational Without MCLK  
– Single 3.3-V Power Supply  
– 64 or 48 × Fs Bit Clock Rate  
– 128, 192, 256, 384, and 512 × Fs Master  
Clock Rates (Up to a Maximum of 50 MHz)  
– Six PWM Audio Output Channels  
– Any Output Channel Can be Mapped to Any  
Output Pin  
– 38-Pin TSSOP Package  
– Support Single-Ended and Bridge Tied Load  
– I2S Serial Audio Output  
DESCRIPTION  
The TAS5086 is a six channel digital pulse width  
modulator (PWM) that provides both advanced per-  
formance and a high level of system integration.  
TAS5086 is designed to interface seamlessly with  
most audio digital signal processors and MPEG  
decoders accepting a wide range of input data and  
clock formats.  
•
Audio Processing  
– Volume Control Range +48 dB to – 100 dB  
– Master Volume Control +24 dB to –100 dB in  
0.5 dB Increments  
– Eight Individual Channel Volume Controls  
With +24 dB to –100 dB Attenuation in 0.5  
dB Increments  
The TAS5086 drives six channels of speakers in  
either single-ended or bridge tied load configurations  
that accept a 1N+1 interface format. TAS5086 also  
supports 2N+1 power stages with the use of some  
external logic (e.g. TAS5112). Stereo line out in I2S  
format is available with either a pass-through signal  
(SDIN4) or an internal down mix.  
– Serial Output Can be Produced by  
Down-Mix of 5.1 Channel Input or 4th Serial  
Input  
– 5.1 Channel Down Mix to 2.1 or 3.1 PWM  
Output Speaker System  
– Integrated Bass Management  
TAS5086 uses AD modulation operating at a 384-kHz  
switching rate for 32-, 44.1-, 48-, 88.2-, 96-, 176.4-,  
and 192-kHz data. The 8 x over sampling combined  
with the 4th order noise shaper provides a broad flat  
noise floor and excellent dynamic range from 20 Hz  
to 20 kHz.  
– Two Programmable Biquads in Subwoofer  
Channel  
– Full Six Channel Input and Output Mapping  
– Selectable DC Blocking Filters  
PWM Processing  
– 8x Over Sampling With 4th Order Noise  
Shaping at 44.1–48 kHz, 4x Over Sampling  
at 88.2, 96 kHz, 2x Over Sampling at 176.4,  
192 kHz, and 12x Over Sampling at 32 kHz  
•
TAS5086 is clock slave only device. TAS5086 re-  
ceives MCLK, SCLK and LRCLK from other system  
components. TAS5086 accepts master clock rates of  
128, 192, 256, 384, and 512 Fs. TAS5086 accepts a  
64 Fs master clock for 176.4-kHz and 192-kHz data.  
– ≥105-dB Dynamic Range  
(TAS5086+TAS5186)  
– THD < 0.06% (TAS5086 Only)  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PurePath Digital is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005, Texas Instruments Incorporated  
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TAS5086 替代型号

型号 品牌 替代类型 描述 数据表
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